The Flint Assembly Plant is the longest-operating factory in the General Motors portfolio, following the closure of Buick City, having first opened nearly 80 years ago in 1947. With such a storied history, Flint Assembly has produced a lot of vehicles, and earlier this month, the plant hit a major milestone. The 16 millionth vehicle rolled off the assembly line at the Flint plant, a 2026 Chevrolet Silverado 2500 HD Crew Cab LTZ finished in Lakeshore Blue Metallic.To celebrate the 16 millionth truck, employees watched as the Silverado reached the end of the line. The Silverado 2500 HD is a fitting vehicle for a place like Flint because this particular vehicle is powered by GM's 6.6-liter Duramax diesel V8, specifically the 3.5 millionth one to be produced. Not only is this truck special because of its build number and its engine, but it was also purchased by a special customer, who will use it the way Chevy intended."The Flint Assembly team is built to last from the inside out. The 16 millionth vehicle is a symbol of the thousands of operations, teamwork and attention to quality employees take pride in every day to keep us at the top of our game."–" Theo Lavergne, Flint Assembly plant executive director Million-Mile Customer Chevrolet The 16 millionth truck won't be put in a museum. It was purchased by Andy Sanford, previous owner of a 2016 Silverado HD with a Duramax diesel engine. Sanford's last truck was driven to almost one million miles on its original injectors, proving the durability of the Duramax engine, according to Chevy. He clearly trusts the Chevy brand and the Duramax toughness, so he had to have another Silverado HD. GM hosted Sanford at Flint Assembly to watch his new truck roll across the assembly line and go through Dynamic Vehicle Testing (DVT)."Seeing my own Chevy put through its paces was surreal," he said. "This was like getting a backstage pass to a special moment. I come from a GM family and while we have had other vehicles, they've been nothing like my truck. I love the reliability and durability." Flint History And Current Day Chevrolet Flint Assembly currently employs over 5,000 people to build the Chevy Silverado HD and the GMC Sierra HD. The Chevrolet Advance-Design trucks were the first vehicles ever built at Flint, but the plant has been used to build other vehicles in the building's nearly 80-year history. In fact, before it was assembled in Bowling Green, Kentucky, Chevy built the first 300 Corvette models in Flint.Chevy also used Flint to assemble the 1955 Bel Air (including GM's 50 millionth overall vehicle), the Monte Carlo (including GM's 70 millionth vehicle), and the Impala. More recently, Flint has focused on pickup truck production. The plant has only built trucks, vans, and SUVs since 1971, such as the C/K Series from 1973 to 1986, GMT800 and GMT900 trucks, and more recently, the Silverado HD.